Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM0000018BF008X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: LIGHTING: LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2007 MY LX470 [08/2006 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the lighting system.
  • *: Use the intelligent tester.

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
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3.

INSPECT BATTERY VOLTAGE

Standard:

11 to 14 V

If the voltage is below 11 V, recharge or replace battery before proceeding.

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4.

INSPECT COMMUNICATION FUNCTION LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

(a) Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

Result

Result

Proceed to

MPX DTC is not output

A

MPX DTC is output

B
B

Go to step 8
A

5.

CHECK FOR DTC*

Result

Result

Proceed to

DTC is not output

A

DTC is output

B
B

Go to step 8
A

6.

PROBLEM SYMPTOMS TABLE

Result

Result

Proceed to

If fault is not listed in problem symptoms table

A

If fault is listed in problem symptoms table

B
B

Go to step 8
A

7.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU 2007 MY LX470 [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: TERMINALS OF ECU

(b) DATA LIST / ACTIVE TEST 2007 MY LX470 [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: DATA LIST / ACTIVE TEST

(c) On-vehicle Inspection 2007 MY LX470 [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: ON-VEHICLE INSPECTION .

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8.

REPAIR OR REPLACE
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9.

CONFIRMATION TEST
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END